5. (b) State and explain Bernoulli’s equation for incompressible fluids.
Or
6. (a) The water is flowing through a pipe having diameters 25 cm and 1o cm at section 1 and 2 respectively. The rate of flow of water through the pipe is 30 litres/sec. Section 1 is 10 m above the ground and section 2 is 2 m above the ground. If pressure at section 1 is 40 N/cm2, find the pressure at section 2.
6. (b) Explain fluid coupling.
Unit-IV
7. (a) State and explain First law of thermodynamics.
7. (b) How boilers are classified? Explain giving examples.
Or
8. a) Explain the construction and working of a Chchran boiler with the help of a neat sketch.
8. b) List Boilers mountigs and accessories.
Unit -V
9. (a) Explain the working of a four stroke petrol engine.
9. (b) Explain Carnot cycle.
Or
10. (a) Write down the principal parts of an I.C. Engine with their functions.
10. (b) Differentiate between two-stroke and four-stroke cycle.